Summer And Winter Solstice 2025 Timetable. The summer solstice represents the longest day, and the winter solstice the shortest. Solstice and equinox precise dates and times for the united kingdom (london) gmt time zone.

2024 winter solstice december 21 at 4:20 a.m., eastern standard time. The summer solstice represents the longest day, and the winter solstice the shortest.